https://techcommunity.microsoft.com/blog/azuresqlblog/hot-patching-sql-server-engine-in-azure-sql-database/849700
Hot Patching SQL Server Engine in Azure SQL Database | Microsoft Community Hub
Nov 9, 2020 - Read about how we patch (modify C++ code in) SQL Server engine without restarting the sqlservr.exe process, by manipulating CPU instructions in memory with...
sql server enginehotpatching